Coal is the dirtiest of fossil fuels, producing twice the carbon dioxide that natural gas does when it is burned. That makes it a big cause of global warming.
But some of the world’s biggest economies rely on coal. It provides almost 50% of America’s and Germany’s power, 70% of India’s and 80% of China’s. Digging up coal provides a livelihood for millions of people. And secure domestic sources of energy are particularly prized at a time when prices are volatile and many of the big oil and gas exporters are becoming worryingly nationalistic. It is hard to see how governments can turn their backs on such a cheap and reliable fuel.
There are no big power plants using it, just a handful of small demonstration projects. Utilities refuse to make bigger investments because power plants with carbon capture and storage would be much more expensive to build and run than the ordinary sort. They seem more inclined to invest in other low-carbon power sources, such as nuclear, solar and wind.
In my view clean coal its a smoke screen then anything else.